Question

Stadard reduction electrode potentials of three metals A,B and C are respectively `+0.5V, -3.0V` and `-1.2V`. The reducing powers of these metals are:
A. `BgtCgtA`
B. `AgtBgtC`
C. `CgtBgtA`
D. `AgtCgtB`.

Answer 1

Correct Answer - A
Higher the R.P. easier to reduce hence b etter O.A. thus species with higher reducing power (better R.A.) has a lower R.P. Therefore, correct order of reducing power is
`BgtCgtA`